Michael a.k.a Rajamma (Kunchacko Boban) and Vishnu Yohannan (Asif Ali) a.k.a Yahoo are brothers. Their parents, Rajamma and Yohannan had migrated to Calicut after having an inter-caste marriage. Michael and Vishnu live a carefree life after the death of their parents. They split the house which they inherited into three parts and rent it. The commotion that happens next makes the story of ‘Rajamma @ Yahoo’.